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ABSTRACT
The Topographic Wetness Index (TWI) is a valuable tool for hydrological analysis. It can be used to identify areas at risk of flooding, delineate wetlands, assess groundwater recharge potential, plan agricultural activities, and manage water resources. TWI is a relatively simple and straightforward tool to use, but it is important to be aware of its limitations. This project presents a comprehensive examination of the Topographic Wetness Index (TWI) and its significance in the field of hydrological analysis, with a specific focus on its application in wetland identification. The TWI is a critical parameter used to describe the propensity of an area to accumulate water, offering insights into the likelihood of areas becoming saturated with moisture. The aim of this project is to assess the practical implications of TWI in identifying wetland areas across diverse landscapes. From the data derived from this experiment, it was discovered that Topographic Wetness Index (TWI) was efficient and applicable in identifying the wetland of the study area but it cannot be used in areas with complex topography, such as mountainous regions. This is because TWI is based on a simplified model of water flow.
